Telescopic sprinkler



Patented Aug. 19, 1952 appucauoana ustglasmserigmo.171, 92"' T-hiS' invention {relates to telescopic sprinklers, and has forone of-its'objects the'production'of a simple and efficient means for deflecting a spray of water fromthedischarge endof a sprinkler, o asito cot er a, wide area, f 2 A further object of this invention is the prof duction of a simple -andeflicient -tele'sc'opic sprinkler;- wherein the extension or sprinkler tube is provided with the water discharge opening or openings thereof directly under an outwardly and upwardly flared'cap; which cap is adapted to deflect and spread the water laterally, over a wide area adjacent the sprinkler; i

Other objects andadvantages of the present invention will appear throughout the following specification and claim.

on t e m r *Figure 1 is aside -elevation'al view'of 'the sprinkler in an extended position, certain parts being shown in section;

Figure 2 is a side elevational view of the upper end of the sprinkler shown in a retracted position, certain parts being shown in section;

Figure 3 is a transverse sectional view taken on line 33 of Figure 1.

By referring to the drawing in detail, it will be seen that I designates a feed pipe which leads to a water supply line of a suitable type. This rpipe I0 supports a nipple II which is threaded upon the upper end of the feed pipe III. This nipple is provided with a tapered upper end I2 the wall of which recedes radially and the nipple I I is adapted to :be inset below or flush with the surface of the ground, as shown in Figure 2. The outer end I2 of the nipple II preferably is provided with a shallow inwardly tapering recess I3 leading to the central bore or aperture I4.

An extension tube I5 is slidably movable in a vertical direction through the bore M of the nipple II. The tube I5 carries an annular laterally extending flange I6 at the lower end thereof, and this flange I6 supports a resilient bumper washer or gasket I! for contact with the abutment shoulder I8 of the nipple I I, when the extension tube I5 is in an extended position, as shown in Figure 1. The flange I6 and gasket I! will limit the vertical sliding movement of the tube I5 through the nipple II. A longitudinally extending key I9 is carried by one side of the extension tube I5, and. this key I9 is adapted to slide longitudinally in the key-way 20 which registers with the bore I4 and is formed in the nipple II. The key I9 and the key-way 20 are adapted to hold the extension tube against rotation and at the same time permit free longinipple II I .g

The tube I5 is provided-with a rounded nose 2 I at its outer end which carries the narrow neck 22 ofthe'cap23, centrally-thereof; The neck 22- may (be threaded into the nose 2| or may be welded or formed integrally therewith, without departing from the spirit of the invention. The cap 23 overhangs the nose 2I in spaced relation to the nose 2I and is'provided with an outwardly and upwardlyainclined under. "facell which extends from the neck 22. to the outer periphery of thecap 23, as shown in Figures 1 and 2.- The-cap 23 preferably is of greater diameter than the tube I5 and the outer portion of the cap 23 adjacent the :periphery thereof is adapted to restwithin the inwardly inclined recess I3 to suspend the tube I 5 when it is in a retracted'lposition. Apertures 25 are formed in the nose 2I directly under the cap 23 close to the neck 22 so as to discharge streams of water against the flared face 24 of the cap 23 and spread the water in a sprinkling manner laterally over a Wide area adjacent the tube I5.

It should of course be understood that the sprinkler operates in substantially the same manner as set forth in my application Serial Number 143,530, filed February 10, 1950, and relating to a Telescopic Sprinkler. The tube I5 will normally rest in a retracted position within a recess tudinalmovement or the tube I5: through the v H in the ground in which the sprinkler is positioned. The cap 23 will then be in the position shown in Figure 2. When water pressure is turned on through the feed pipe II], the pressure will raise the tube I5 to the extended position shown in Figure 1, and the water will be sprayed upwardly through the apertures 25 in an upwardly and outwardly inclined direction against the inclined face 24 of the cap 23 and then laterally of the cap as previously set forth.

Any number of apertures 25 may be used in the nose or swedged portion of the tube without departing from the spirit of the invention, to obtain the desired results. For instance, two holes may be used to sprinkle a half circle, and one hole may be used to sprinkle a quarter of a circle. More holes in the desired number, may be used to sprinkle greater areas. The tube with the desired number of holes is placed in the nipple I I and the nipple I I is then threaded upon the feedpipe I 0. Of course, it is preferable to mount tubes at selected locations in a given area having apertures or holes in the desired number to direct the sprinkling water in the direction or directions desired. In this way for instance,

sprinklers having only one aperture or hole may be placed near a walkway with the sprinkling aperture facing the lawn so as to prevent sprinkling the Walkway or passersby using the walkway. It should be noted that water may flow through the tube IS in a free and unobstructed path from end to end to obtain full benefit of the water service supply and will then be discharged directly against the fiared face 24 of the cap 23. ';'I;his will break up the streams of water passing out through the apertures 25 into a spray or a fine mist. Furthermore, the cap 23 extends radially beyond the tube l5 to shield the nipple H when the tube I5 is in a retracted :position and prevent foreign matter from penetrating below the cap 23. While water isfiowingthrough the tube I5, any debris whichmay fal1 intodthe shallow recess 13 will be washed out and down the tapering end i2 and receding walls thereof away from the recess so';;that the cap may rproperly seat itself, in the reOBSSllB when-the-twbe l 5 is retracted;

9;It should be understood that certain ,detail 7 changes tm y 10c :made 1 in ,th gdetaiL-mechamcal invention, -what dis 4 movement of the tube through the nipple, said extension tube |being hollow throughout its length and terminating in an integral rounded nose at its outer end, said rounded nose having apertures formed therein for discharging a stream of water from said tube in an upward direction, said hollow tube facilitating a free and unobstructed flow of water throughout its entire length, a cap carried by said nose and supported in spaced ,cverha'nging relation totheno'se,-:said cap having an outwardly and upwardlyinclined' "under face adjacent the nose and projecting radially of said -extension tube for deflecting a stream of water rdischarged'through said aperture of the nose in 7 ,REFERENCES aCITE'D v The following references :,:ar.e :of .arecordin :the file of this patent:

"UNITEDSTATESPATENTS v I Manama:

Number Name V I 1,847,921 Bowers ',-.Mar l, 1932 

